KNOWN FAULTS · Audi

Known faults for the Audi A1 (GB).

2018–2026 · Petrol

Sources are not verified in real time and no entry confirms that your car is affected.

3 known faults with sources

Engines: 1.0 TFSI (25/30 TFSI) (Petrol) · 1.5 TFSI (35 TFSI) (Petrol)

Applies if: Only if fitted with the 7-speed DQ200 DSG. Confirm the gearbox type.

DSG7 gearbox mechatronic unit (DQ200)Gearbox

Engine / equipment: 7-speed DQ200 DSG gearbox (dry clutch, 0AM mechatronics), paired with 1.0/1.2/1.4 TSI and 1.6 TDI engines
Period mentioned: 2008 onwards
Symptoms: Judder or shudder pulling away in 1st/2nd, reverse won't engage, PRNDS letters flashing or a spanner warning, gearbox stuck in one gear (limp mode).
Possible cause described: Mechatronic unit failure: the pressure accumulator develops fatigue cracks, the electric pump runs constantly and the gearbox loses pressure. The mechatronic's 30 A fuse sometimes blows. Wear of the dry dual clutch is also common.
Check for the garage: Read the gearbox module faults with VCDS, OBDeleven or similar and check the mechatronic fuse.
Cost cited in the source: €350–550 to repair the mechatronic unit alone; €1,000–1,200 including removal and refittingA rough figure from the original database, not an up-to-date quote.

Engines: 1.0 TFSI (25/30 TFSI) (Petrol) · 1.5 TFSI (35 TFSI) (Petrol) · 2.0 TFSI (40 TFSI) (Petrol)

Applies if: Only if fitted with the air conditioning system described.

A/C not cooling: N280 valveClimate control

Engine / equipment: Air conditioning with clutchless compressor and N280 regulating valve (combustion VW, Audi, Seat, Cupra and Skoda from 2006)
Period mentioned: 2006–2026
Symptoms: The air does not cool or cools intermittently (for example only at motorway speed), and sometimes the compressor rattles with the A/C on. Codes 01232 (N280 valve), P2612 or 00898.
Possible cause described: The compressor regulates its output with the N280 solenoid valve, its most common failure point. Audi issued technical bulletins over a manufacturing fault in this valve on Sanden compressors. Its connector can also become brittle and corrode (especially without the engine undertray), or the wiring fails.
Check for the garage: Read the codes and N280 control current with VCDS or ODIS, measure its resistance (about 10 ohms) and check the connector and wiring before replacing parts. If the valve or compressor is replaced, the whole circuit must be flushed.
Cost cited in the source: N280 valve: a cheap part (about 30 dollars) where sold separately; new compressor with circuit flush: considerably moreA rough figure from the original database, not an up-to-date quote.

Engines: 2.0 TFSI (40 TFSI) (Petrol)

EA888 gen 3 water pump and thermostatCooling

Engine / equipment: 1.8 and 2.0 TSI/TFSI EA888 gen 3 (Golf VII GTI/R, A3/S3 8V, TT 8S, A4 B9, Octavia III, Leon III, Passat B8, Tiguan II, Superb III…)
Period mentioned: 2012–2020
Symptoms: Slow coolant loss, sweet smell, low-coolant warning and coolant residue under the intake manifold. Overheating is rare unless the level drops a lot.
Possible cause described: The water pump and thermostat form a single plastic module next to the exhaust that cracks with heat cycling. It often fails before 100,000 km and Volkswagen recognises it as a design fault.
Check for the garage: Look for coolant residue where the module meets the block and between pump and thermostat, check the level and pressure-test the system.
Cost cited in the source: Complete pump and thermostat module with coolant: approx. €470–740 at a specialist (converted from Canadian dollars)A rough figure from the original database, not an up-to-date quote.

Mileage cited in the database: up to 100,000 km. This is not a maintenance interval and does not predict a failure.